BACKGROUND: Comprehensive analyses on the effect of household dogs on dog allergen levels in the home are lacking. OBJECTIVE: To identify environmental factors and dog-specific characteristics that influence the accumulation of Canis familiaris 1 (Can f 1) in homes. METHODS: Dust samples were collected from the floor of infants' bedrooms at a Wayne County Health, Environment, Allergy, & Asthma Longitudinal Study birth cohort study home visit and processed for Can f 1 using a standardized protocol. Dog characteristics were based on maternal report. Homes with 1 dog were included in detailed analyses, including characterization of the dog based on coat type, dander level, and shedding. RESULTS: Households with dogs had higher levels of dog allergen in the home than those without dogs; however, the number of dogs in the home was not related to dog allergen levels. Homes with exclusively outdoor dogs had significantly higher dog allergen levels than homes without any dogs but significantly lower levels of dog allergen than homes with indoor dogs. Homes where the dog was allowed in the infant's bedroom had significantly higher Can f 1 levels on the child's bedroom floor than homes where it was not. The homes of altered dogs had higher Can f 1 levels than did their unaltered counterparts. CONCLUSIONS: Dogs in the home corresponded to dog allergen in the home. Time the dog was indoors and whether it was allowed on the vacuumed surface mattered. No dog characteristic, other than altered status, was associated with allergen levels in the home.
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机译：背景：缺乏对家犬对家中狗过敏原水平影响的综合分析。目的：确定环境因素和狗特有的特征，这些因素会影响家犬类Canisimitis 1（Can f 1）的积累。方法：从韦恩县卫生，环境，过敏和哮喘纵向研究出生队列研究家访的婴儿卧室地板上收集灰尘样品，并使用标准化方案处理Can f 1。狗的特征基于母体报告。详细分析中包括有1只狗的房屋，包括根据被毛类型，皮屑水平和脱落情况对狗进行表征。结果：有狗的家庭比没有狗的家庭具有更高的狗过敏原水平。但是，家中的狗的数量与狗的过敏原水平无关。拥有室外狗的房屋的过敏原水平明显高于没有狗的房屋，但是其过敏原水平明显低于拥有室内狗的房屋。允许狗进入婴儿卧室的房屋在儿童卧室地板上的Can f 1水平比不允许的房屋高。患病狗的家园的Can f 1水平高于未患病的犬。结论：家中的狗相当于家中的狗过敏原。狗在室内的时间以及是否允许在真空表面上都很重要。除了状态改变以外，没有狗的特征与家中的过敏原水平有关。
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